Several phone interviews were conducted. While they were via telephone, I also needed to log into the Google systems provided to create a common editing experience. I coded thusly in front of the interviewer. I believe I was doing reasonably well and was looking forward to an in-person interview. However, one of the interviewers left the company for another job. As it was too close to the decision point, the process was abandoned for me. I presume it continued for the other candidates.

How would I build a subsystem that involved sorting and searching through data?